电心图像学用于指导腹腔失常的切除和两个不同的系统之间的协议
Leonor Parreira1, Pedro Carmo2, Silvia Nunes2
1Hospital Luz Lisbon, Portugal; Setubal Hospital Center, Portugal.
电心图像 (ECGI) 系统有效地识别了心室失常 (VA) 的起源. 这些诊断工具无论使用心脏源,都显示出可重现的结果,证实了它们在临床实践中的实用性.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 电力生理学 电力生理学
背景情况:
- 之前的研究表明,仅表心电图和室腔失常 (VA) 的接触映射之间缺乏一致性.
- 具有不同心脏源的内分外皮心EGCI系统的诊断价值及其一致性需要进一步评估.
研究的目的:
- 评估两个内心电心图像 (ECGI) 系统的诊断实用性.
- 评估这两种ECGI系统在局部化心室节律失常 (VA) 方面的一致性.
主要方法:
- 在接受VA切除的52名患者中,进行了69次ECGI手术.
- 使用了两个ECGI系统:一个基于细胞外潜力 (高达224个导线),另一个基于同等的双层模型 (12个导线ECG).
- 使用细分心室模型进行VA起源定位;定义了完美匹配 (PM) 和接近匹配 (NM) 标准.
主要成果:
- 在两个ECGI系统之间,PM (76%对97%) 和NM (95%对100%) 的百分比没有显著差异.
- 当两种系统在同一个患者 (79% PM) 中使用时,观察到高度一致.
- 这两种系统都在识别VA来源方面都很有用.
结论:
- 内皮心ECGI系统对于识别心室心律失常的起源是有价值的.
- ECGI系统的诊断性能是可重复的,不管使用的心脏源.
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